Google co-founder Sergey Brin, who appeared at the TED stage yesterday, explained that smartphones don't allow their users to interact enough with the outside world, and even called them "emasculating." People walk around with their faces buried in their smartphone's screen and swipe at a piece of glass.

"Is this the way you're meant to interact with other people?" asked Brin. "It's kind of emasculating. Is this what you're meant to do with your body?

"When we started Google 15 years ago, my vision was that information would come to you as you need it. You wouldn't have to search query at all."

According to Brin, Google Glass -- a hands-free, voice-activated headset with augmented reality features -- is that vision materialized. Brin showed Google Glass off at TED, saying it's the way people were meant to interact with one another while still using digital technology.

Google Glass is being offered to early adopters right now for a steep price of $1,500.

Think in broader terms. They are working on the display and information presentation.

Interaction is only voice because no one has had a strong reason to work on tech that follows pupil focus. Cameras are just getting small enough with resolution to allow the Google glass. A few more years and they will have them small enough to read the eye behind the glass.

Once that happens, you will interact without voice. Every time you read an old scifi book, someone imagined what we have created and implemented today.

An "Eye" interface has been used in scifi books and games for HUD's for a long time. The tech will get there, and it will not be long.